Connecting processes with indefinite causal order and multi-time quantum states

Recently, the possible existence of quantum processes with indefinite causal order has been extensively discussed, in particular using the formalism of process matrices. Here we give a new perspective on this question, by establishing a direct connection to the theory of multi-time quantum states. S...

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Bibliographic Details

Published in:	New Journal of Physics
Main Authors:	Ralph Silva, Yelena Guryanova, Anthony J Short, Paul Skrzypczyk, Nicolas Brunner, Sandu Popescu
Format:	Article
Language:	English
Published:	IOP Publishing 2017-01-01
Subjects:	process matrices multi-time states post-selection indefinite causal order two-time states
Online Access:	https://doi.org/10.1088/1367-2630/aa84fe